Search results for "Temporal lobe epilepsy"

Antiepileptic effect of dimethyl sulfoxide in a rat model of temporal lobe epilepsy.

2012

Dimethyl sulfoxide (DMSO) is an amphipathic molecule widely used to solubilize water-insoluble compounds. In many studies it was reported that DMSO is capable of affecting several biological processes, thus resulting in a potential cause for the misinterpretation of experimental data. Recent papers showed that DMSO modified the brain bioelectric activity in animal models of epilepsy. In an in vivo model of temporal lobe epilepsy in the rat, we examined the effects of different doses (10%, 50% and 100%) of DMSO on the maximal dentate activation (MDA). The results show that DMSO induced a dose-dependent significant reduction of the electrically induced paroxysmal activity.

Interictal cardiorespiratory variability in temporal lobe and absence epilepsy in childhood

2015

It is well known that epilepsy has a profound effect on the autonomic nervous system, especially on the autonomic control of heart rate and respiration. This effect has been widely studied during seizure activity, but less attention has been given to interictal (i.e. seizure-free) activity. The studies that have been done on this topic, showed that heart rate and respiration can be affected individually, even without the occurrence of seizures. In this work, the interactions between these two individual physiological variables are analysed during interictal activity in temporal lobe and absence epilepsy in childhood. These interactions are assessed by decomposing the predictive information …

Molecular chaperones and mirnas in epilepsy: Pathogenic implications and therapeutic prospects

2021

Epilepsy is a pathologic condition with high prevalence and devastating consequences for the patient and its entourage. Means for accurate diagnosis of type, patient monitoring for predicting seizures and follow up, and efficacious treatment are desperately needed. To improve this adverse outcome, miRNAs and the chaperone system (CS) are promising targets to understand pathogenic mechanisms and for developing theranostics applications. miRNAs implicated in conditions known or suspected to favor seizures such as neuroinflammation, to promote epileptic tolerance and neuronal survival, to regulate seizures, and others showing variations in expression levels related to seizures are promising ca…

ROLE OF NITRIC OXIDE/cGMP PATHWAY IN CANNABINOID MODULATION OF PAROXYSMAL PHENOMENA

Hsp60 response in experimental and human temporal lobe epilepsy due to hyppocampal sclerosis

2015

Hsp60 is widely distributed in the brain, and its alteration has been involved in different neurological disorders. Epilepsy is considered one of the most common neurological disorders and typically involves the hippocampal formation. Compelling evidence describes a role of mitochondria, oxidative stress and both innate and adaptive immunity during epileptogenesis in temporal lobe epilepsy due to hyppocampal sclerosis (TLE-HS). Here, we investigate the Hsp60 involvement in experimental and human epilepsy. Firstly, expression and distribution of Hsp60 in epileptic hippocampi of a rat model of temporal lobe epilepsy (TLE), based on the phenomenon of maximal dentate gyrus activation (MDA), usi…

Interictal Heart Rate Variability Analysis Reveals Lateralization of Cardiac Autonomic Control in Temporal Lobe Epilepsy.

2020

International audience; Purpose: The temporal lobe, a critical hub for cognition, also plays a central role in the regulation of autonomic cardiovascular functions. Lesions in this area are usually associated with abnormalities in the regulation of heart rate (HR) and blood pressure (BP). The analysis of the heart rate variability (HRV) is useful to evaluate the cardiac parasympathetic nervous system activity. This study aims at comparing HRV changes occurring in two groups of patients suffering from Temporal Lobe Epilepsy (TLE). To that aim, we evaluated patients differentiated by the right or left location of the epileptic foci. Materials and Methods: Fifty-two adult patients with a diagn…

The role of circulating and exosomal miRNAs as biomarkers of drug-resistant epilepsy

Epilepsy is estimated to affect about 65 million individuals worldwide, with up to 30 percent of drug-resistant patients who do not have remission despite appropriate therapy with antiepileptic drugs (AEDs). Therefore, it is important to distinguish drug-resistant epilepsy early in the course of disease to start a specific therapeutical approach as soon as possible. Recently circulating miRNAs have been proposed as promising biomarkers for different neurodegenerative disorders, including epilepsy. MiRNAs are a class of small non-coding RNA that regulate gene expression at a post-transcriptional level. The regulatory mechanisms controlling translation of mRNA transcripts represents to date a…